Tool for drawing bolts, tenons, &amp;c.



s. o. DUEMLBR. TOOL FOR DRAWING BOLTS, TENONS, 8w.

APPLICATION FILED DEC. 9, 1907.

902,649, Patented Nov. 3,1908.

SAMUEL O. DUEMLER, OF SPRINGFIELD, MISSOURI.

TOOL FOR DRAWING BOLTS, TENONS, 850.

Specification of Letters Eatent.

Patented Nov. 3, 1908.

Application filed December 9, 1907. Serial No. 405,766.

To all whom it may concern:

Be it known that l, SAMUEL O. DUEMLER, a citizen of the United States, residing at Springfield, in the county of Greene and State of Missouri, have invented a new and useful Tool for Drawing Bolts, Tenons, &c., of which the following is a specification.

This invention relates to tools for drawing bolts, tenons and the like from bodies in which they are frictionally held and it is more particularly designed for removing the tenons of broken wheel spokes from the hubs of wheels. Heretofore this operation has been attended by considerable difficulty, it usually being necessary to cut the tenon out of the hub, this requiring the expenditure of considerable time and labor.

lhe object of the present invention is to provide a tool of simple and durable construction which can be quickly applied to a wheel hub and which will effectually operate to withdraw a tenon quickly from the hub.

VJith these and other objects in view the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings: Figure 1 is a perspective view of a device embodying the present improvements, the same being shown in position upon a hub and in engagement with a tenon therein. Fig. 2 is a longitudinal section through the device. Fig. 3 is a detail view of the tenon engaging device used in connection therewith. Fig. 4 is a detail view of one form of wrench which may be employed for placing said device in engagement with the tenon.

Referring to the figures by characters of reference, 1 designates the body of the tool, the same being in the form of a yoke, the intermediate portion. of which is provided with a slot 2. Pivotally mounted between the ends of the yoke is a bell crank lever 3 having a forked extension 1 at one end thereof and preferably extending substantially perpendicularly thereto. Ears 5 end portions of this fork inwardly toward the body 1 and openings 6 are formed in these cars and the fork and are designed to receive a pivot 7 on which an anti-friction roller 8 is mounted. That portion of the bell crank lever pivoted within the yoke 1 is forked as indicated at 9 and mounted on the pivot 10 extend from the and within this fork is one end of an L-shaped lever 11 the other end of which is forked as indicated at 12 and provided with cars 13, said ears as well as the fork being provided with openings 14 for the reception of a bolt or pin 15 on which an anti-friction roller 16 is mounted. lhe angle portion of the lever 11 is rounded and provided upon its convex face with teeth 17 Links are disposed upon opposite faces of the angle portion of this lever 11 and are pivotally connected thereto by means of a bolt 19 and ournaled between these links and upon a bolt 20 is a lever 21 substantially L-shaped in form and having teeth 22 at one end which mesh with the teeth 17. The other end of this lever 21 is forked as indicated at 23 and pivotally mounted within this fork is an ear 24 extending in one direction from an operating lever 25. Another ear 26 extends in the opposite direction from said lever and is pivotally mounted within the forked end 9 of lever 3.

The slot 2 of body 1 is designed to receive the shank 27 of a screw 28. This screw may be of any desired form and proportions and has a head 29 designed to fit within the yoke or body 1 and hold the screw against withdrawal longitudinally through the slot 2 after it has once been seated therein.

In using the device herein described screw 28 is forced into engagement with a tenon such as indicated at A and for this purpose any suitable tool may be employed such as, for example, a socket wrench 30 as indicated in Fig. 4 and which is designed to be operated by means of an ordinary brace not shown. After the screw has been driven into the tenon for a desired distance the yoke or body 1 is placed in engagement with shank 27 as indicated in Fig. 2. The parts will then as sume the positions shown in Fig. 1. Lever 25 is then pulled downward and this will cause the car 26 to push upward on the end of bell crank lever 3 so as to force the roller 8 against the hub B. At the same time car 24 will push inwardly on lever 21 and cause the teeth 22 thereon to operate teeth 17 and force roller 16 against the hub B. The two levers 3 and 11 will thus act as a toggle and pull outwardly on yoke or body 1, so as to withdraw tenon A from its socket, the parts of the device cooperating to move the tenon along a straight line. After this withdrawal has been effected the tool can be slid off of the screw 28 and by repeating the operation another tenon can be removed.

It will be seen that the tool is very simple, durable, and efficient, can be readily applied and 0 erated, and is sufficiently powerful to uick y withdraw various forks of tenons and t e like from the sockets in which they are seated.

What is claimed is:

1. A tool comprising a body, oppositely disposed angular members pivotally connected to the body, and pivot-ed means supported solely by said members and disposed to simultaneously shift said members to pull the body along a straight line.

2. A tool comprising a body, oppositely disposed members pivotally connected to the body and mounted to swing towards each other, an actuating lever, separate means connecting said lever and the respective members, said lever being solely supported by said means and disposed to simultaneously shift said members to pull the body along a straight line.

3. A tool comprising a body, op ositely disposed angular members pivotal y con.- nected to the body, an actuating lever pivotally mounted upon one of said members, and pivoted power transmitting means interosed between said lever and the other memer, said lever being supported solely by said members to which it is connected and being disposed, when moved in one direction, to simultaneously shift said members to pull the body along a straight line.

4. In a tool the combination with a body; of oppositely extending members pivotally connected to the body and having shiftable fulcrums, one of said members having teeth thereon, a toothed lever movably connected to and meshing with the teeth on said toothed member, and an actuating lever iv otally connected to and solely supporte by the other member and the toothed lever, said actuating lever being disposed, when moved in one direction, to simultaneously shift said members to pull the body along a straight line.

5. In a tool the combination with a body;

of oppositely extending members pivotally connected to the body, one of said members having teeth thereon, bearing rollers carried.

by the members, a toothed lever movably connected to and meshing with the teeth on said toothed member, and an actuating lever pivotally connected to and solely supported by the other member and the toothed lever, said actuating lever being disposed, when moved in one direction, to simultaneously shift said members to pull the body along a straight line.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

SAMUEL O. DUEMLER.

Witnesses:

CHARLES P. OLLIS, J. P. WILLIAMS. 

